If uA is comstantly accelerating, wouldn't we approach the speed of light? Einstein says tht mass increases with velocity, oso wouldn't UA need an ever increasing force? At the speed of light, the mass and thus force required is infinite. According to science web sites, by about 20% of the speed of light, significant energy goes into increasing the mass.
So the FE universe is an infinitely long cylinder which had better be an absolute vacuum, since even a single hydrogen atom will go through everything and create ionizing radiation, a small rock at that speed might make a dinosaur killing level of explosion. At some point, we are going the speed of a particle in an atim smasher. Better not hit anything.
So we have an effectively infinite length cylinder that we know nothing about, and the conventional 3 space outside the cylinder, if it exists, we know nothing about. The known universe on FE with UA is 8000 miles wide and infinitely long, and is damn straight and empty. An unknown force (exponentially increasing?) pushes us along this oh so perfect tube and we never reach a speed where our mass is a problem, even after thousands of years accelerating at 9.8m/sec2.
Meanwhile, on the dome, we have stars, the sun and the moon, who are also propelled. The sun produces a measurable amount of energy over the face of the earth, as studied by makers and users of solar cells. In the disk/dome model, we have all that energy coming from a sun 35 miles across. The energy in that 35 mi sun is about like a million times as dense as the real sun. No explanation of this physics from this model, but somehow, the force goes through the disk and through the air that gets scarcer and scarcer, pretyty much none at 3000 mi. Yet that sun theat produce millions of times more energy per square foot than the real sun. Must be pretty heavy, like infinitely heavy. To hold that weight and survive the heat, that dome must be miraculously strong, or there is completely unknown physics.
I would love to hear the explanation after you have figured all this out. What is the force, how does it not get to light speed, how does it operate on the things above us, why aren't we infinitely massive (and zero length). What is outside the cylinder, what is the force, how does the cylinder stay perfectly empty.
Have I got this right?